GLORY kickboxing presents Collision 4 from the GelreDome in Arnhem, Netherlands on October 8, headlined by the Badr Hari vs. Alistair Overeem rubbermatch. Badr Hari is one of the most exciting kickboxers in the world and the Moroccan-Dutch bad boy is ready to get some closure when he faces his long time adversary Alistair Overeem […]